I was wondering how accurate frequencies do PC speakers produce. I'm talking about the old small things in computer that usually beep.
I used the
beep linux command to generate some frequencies. But I noticed something interesting. When I use the hardware PC speaker I stop hearing anything on 1700Hz. Actually I barely hear up to 16850Hz and I feel it more like a pain in the back part of my head.
Emulating PC speaker with the integrated sound card and listening through the laptop speaker I hear up to 20KHz and it is nothing like a pain.
So I am wondering if any of these two can be trusted for producing frequencies above 8Khz? I'm more inclined to trust the old PC speaker because I expect to hardly be able to hear such high frequencies. Not having experience with known correct equipment it is hard to judge though.
P.S. I don't think there is any spec I can read about frequency response.